Definition
Laterite rock is a type of Sedimentary rock which is rich in iron and aluminium, formed in hot and wet tropical areas
Dunite is a green to brownish coarse-grained igneous rock mainly consisting of olivine
History
Origin
India
New Zealand
Discoverer
Francis Buchanan-Hamilton
Ferdinand von Hochstetter
Etymology
From Latin later brick, tile + -ite1
From the name of Dun Mountain, New Zealand, + -ite1
Class
Sedimentary Rocks
Igneous Rocks
Sub-Class
Durable Rock, Soft Rock
Durable Rock, Medium Hardness Rock
Family
Group
-
Plutonic
Other Categories
Fine Grained Rock, Opaque Rock
Coarse Grained Rock, Opaque Rock